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intake manifold pcv baffle/splash shield question |
Post Reply | Page 123 9> |
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tom999q
AMC Apprentice Joined: Mar/31/2019 Location: Colorado Status: Offline Points: 168 |
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Posted: May/08/2019 at 11:12am |
Well I don't think it would be too hard to make a baffle, it was just pressed sheetmetal..
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ChillyB
AMC Nut Joined: Nov/14/2018 Location: PA Status: Offline Points: 371 |
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Good call. Wasnt thinking of the crossover.
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NVCJ5
AMC Fan Joined: May/07/2019 Location: Las Vegas NV Status: Offline Points: 10 |
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Rats! tom999q I needed that baffle
Guys get aftermarket manifolds and move over the baffle as directed then sell the baffleless boat anchor to people like me on ebay |
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69 ambassador 390
Supporter of TheAMCForum Joined: Nov/22/2009 Location: Peoria, AZ Status: Offline Points: 3539 |
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Pcv baffle was used from day one also. It shields the heat crossover from coking the oil also. It's main purpose is as an air/oil separator.
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Steve Brown
Algonac, Mi. 69 Ambassador sst 390 84 Grand Wagoneer 69 Cougar XR7 65 Fairlaine 500XL 79 F-350 Super Camper Special |
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ChillyB
AMC Nut Joined: Nov/14/2018 Location: PA Status: Offline Points: 371 |
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Talking about the tin cover riveted to bottom of manifold, not the valley pan.
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401MATCOUPE
AMC Addicted Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5368 |
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Keep in mind the factory metal valley pan was used from DAY 1 of the Gen 2 engine in 1966.....there was no thoughts of EGR then.
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Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
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ChillyB
AMC Nut Joined: Nov/14/2018 Location: PA Status: Offline Points: 371 |
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I think the factory sheet metal served as a PCV baffle, and also shielded the exhaust-hot EGR passages from a direct soaking of oil. If you end up needing to make a baffle I think it can be much smaller IF using a non-EGR intake manifold.
I dont know what would be the effect of uncovered EGR passages. Maybe it would generate some extra crankcase fumes/smoke? Maybe that would dirty up the carb and intake? I'm sure someone has done it.
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tom999q
AMC Apprentice Joined: Mar/31/2019 Location: Colorado Status: Offline Points: 168 |
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Yes, I ground the old rivets out of the old manifold and riveted the baffle to the new manifold with the new rivets. After all the hub-bub, I didn't put any kind of filter into the baffle because it didn't have one on the old manifold i took it off of (unless it disentegrated into the engine, haha)
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NVCJ5
AMC Fan Joined: May/07/2019 Location: Las Vegas NV Status: Offline Points: 10 |
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I may have missed something during the big fight but did the OP ever take it back apart and install the baffle?
Looking everywhere for one of those, I'll pay good money if you have it and want to sell it (or anybody else that has one) |
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tom999q
AMC Apprentice Joined: Mar/31/2019 Location: Colorado Status: Offline Points: 168 |
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Well ChillyB sent me all three sizes and I'm sure glad he did because as I was drilling the old rivets out, the holes got bigger. As a result, the original size didn't fit anymore, but the larger of the three sizes did. So in the end, JerseyJoe, if you're prepping a used manifold then it might be better to get all three sizes just to be on the safe side..
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